Goodwill And Other Intangibles (Schedule Of Change In Carry Amount Of Goodwill By Business Segment) (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 3,847	$ 4,238
Acquisitions	83	178
Divestitures		(441)
Foreign currency translation and other	(21)	(128)
Goodwill, ending balance	3,909	3,847
Process Management [Member]
Goodwill [Roll Forward]
Goodwill, beginning balance	2,790	2,701
Acquisitions	39	176
Divestitures		0
Foreign currency translation and other	(19)	(87)
Goodwill, ending balance	2,810	2,790
Industrial Automation [Member]
Goodwill [Roll Forward]
Goodwill, beginning balance	369	607
Acquisitions	0	0
Divestitures		(213)
Foreign currency translation and other	2	(25)
Goodwill, ending balance	371	369
Climate Technologies [Member]
Goodwill [Roll Forward]
Goodwill, beginning balance	492	500
Acquisitions	44	0
Divestitures		0
Foreign currency translation and other	(4)	(8)
Goodwill, ending balance	532	492
Commercial & Residential Solutions [Member]
Goodwill [Roll Forward]
Goodwill, beginning balance	196	430
Acquisitions	0	2
Divestitures		(228)
Foreign currency translation and other	0	(8)
Goodwill, ending balance	$ 196	$ 196